Jackson Racing Cold Air Induction System

By Jim Savoy

I started the modifications to my 92 Yellow Miata with the Borla Free
Flow Exhaust. This opened up the back end of the system but I
immediately felt the need to get rid of the asthmatic stock intake and
ram a larger volume of denser air into the engine. I bought a used
Jackson Racing Cold Air Induction System from a friend after we
installed the Sebring Supercharger on his Miata.
The install was my third so it was really straightforward. It takes
around 45 minutes to install the entire system and about 15 additional
minutes to clean up the dirty area which was previously covered by the
system stock.

The difference was immediately obvious. The car had real PEP.
It was very difficult to keep it under 80 mph. The engine reved
incredibly freely all the way to 7500 (until the rev limiter kicked in).
You could feel it really breathing freely for the first time. The
biggest difference was accelerating from 65 mph to 85 + mph. There was
real power at high rpm. I was really pleased with the entire setup. I
took the MCA's advice and advanced the timing to 14 degrees BTDC and
felt an even bigger boost to the power.
I was even more shocked when several of us took a trip to Lake Tahoe
(6300 ft. with passes over 7000 + ft.). In previous trips with two
different Miatas, the thinner air was immediately noticeable above 4000
ft.

The car wheezed and had no pickup. Now, with this intake system, the
car really screamed even above 7000 ft. I could pass campers, and drive
just like at sea level. This was a really spectacular improvement.

I would highly recommend this system to anyone who doesn't want to
spend the money on a supercharger or turbocharger. There are no moving
parts and the system is very well designed.

For additional oomph, I have since installed the Jackson Racing Chrome
Header to complete the opening of the entire intake/exhaust system.
These three pieces have a tremendously beneficial effect on the Miata's
performance.